''Johnny always likes to help out the community when on location," a source told The Sun.

''While scouting out the area around Albuquerque, he came across these two characters.

"He was straight on the phone to the casting director.''

Johnny Depp will star opposite Morgan Freeman, Cillian Murphy, Kate Mara, Paul Bettany and Rebecca Hall in Transcendence - produced by Christopher Nolan - which tells the story of an assassinated scientist (Depp) who has his brain uploaded to a computer.